Sock



FIG. 1 is a perspective view of a first embodiment of a sock showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is right side view;

FIG. 5 is left side view;

FIG. 6 is top view; and

FIG. 7 is bottom view.

FIG. 8 is a perspective view of a second embodiment of a sock showing our new design;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is right side view;

FIG. 12 is left side view;

FIG. 13 is top view; and,

FIG. 14 is bottom view.

The broken line showing in the drawings are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a sock, as shown and described. 